Coin return process

1. A coin return process applicable in coin returns in which at least two types i of coins of different values coexist in a single storage area, comprising the steps of: a) obtaining a total value to be returned; b) assigning different initial weights Weight i 0 to each of said at least two types of coin, i<=2; c) identifying the coin to be extracted or recovered by said return prior to its extraction or recovery; d) modifying, after the identification of said coin to be extracted or recovered by the return, the weight assigned to said identified coin, Weight i ′ being said modified weight; e) checking if said modified weight Weight i ′ is equal to a pre-established value, and extracting said coin with said modified weight equal to said pre-established value; f) after said coin is extracted, modifying said value to be returned, subtracting the value of said extracted coin; and g) repeating steps c)-e) until the value to be returned is zero or less than the value of the coin of less value available in the return.

2. The process according to claim 1 , wherein said modification of the weight of a coin consists of decreasing by one unit the current weight of the coin the value of which corresponds to the identified coin.

3. The process according to claim 2 , wherein said modification of the weight is carried out provided that the weight of the identified coin is greater than said pre-established value.

4. The process according to claim 1 , wherein said initial weights Weight i 0 are calculated by dividing the value of the coin of greatest value existing in the return by the value of each of the types i of coin of the return.

5. The process according to claim 1 , wherein said initial weights Weight i 0 have a maximum value which is less than or equal to the result of dividing the value of the coin of greatest value by the value of the coin of less value.

6. The process according to claim 1 , wherein said initial weights Weight i 0 have a maximum value of 8.